I've always thought the goal of high-end audio was not to have your neighbors bang on the wall and say, 'Turn that darn music down' but to have your neighbors bang on the wall and say, 'Tell your friends to go home and you can practice later this week'.

Not sure of your point, other than that it is a product from the same company.
Heck, Mapleshade sells some nice things, too -- and some bizarre things.
Pretty common in this industry, which - from my perspective - has a faction that sometimes preys on the naïveté of its market.

Pierre Sprey (to pick on Mapleshade again) isn't a hack -- but, again, some of his products are sort of questionable in either concept or execution.

Full disclosure, I have a pair of Mad Scientist Audio Black Discus thingies (the trial versions) on my loudspeaker cables. Why? Because they were free (as in absolutely free, mailed from New Zealand on their dime) and they certainly do no harm. I like Mad Scientist Audio's attitude in the context of the hifi tweak companies (FWIW) -- they don't seem to take themselves too seriously, but they are actually a business.

"Electronic music is human sound adapting to indulge technology, and for some, it feels like the signature sound of energy. New and abstract sounds over hypnotic rhythms can conjure vast soundscapes for escape, pleasure, and transcendence."

Full disclosure: I may have done this to make "reasonable" power cords for my Quad ESL-57s , which have two-prong IEC style power input connectors on 'em. The factory power cords are, like, 30 feet long.

Heck, some power cords have removable ground pins -- not sure if they've been treated with one meeeeeellion volts though.

Not sure of your point, other than that it is a product from the same company.
Heck, Mapleshade sells some nice things, too -- and some bizarre things.
Pretty common in this industry, which - from my perspective - has a faction that sometimes preys on the naïveté of its market.

Pierre Sprey (to pick on Mapleshade again) isn't a hack -- but, again, some of his products are sort of questionable in either concept or execution.

Full disclosure, I have a pair of Mad Scientist Audio Black Discus thingies (the trial versions) on my loudspeaker cables. Why? Because they were free (as in absolutely free, mailed from New Zealand on their dime) and they certainly do no harm. I like Mad Scientist Audio's attitude in the context of the hifi tweak companies (FWIW) -- they don't seem to take themselves too seriously, but they are actually a business.

My point is the company makes some good things. I’m not saying this is one of them, but I’m also not going to say it isn’t. After all, people do spend hundreds on fuses and they seem to have legitimate improvements.

We preach an open mind but close it when it doesn’t conform. ‘Yeah, but...’ is a closed mind unless you’ve got some real evidence to follow. I admit this seems absurd but won’t say it is. What that said, I won’t be investing my money to trial it.

As was pointed out at the listserv from whence came the link (a gathering of the northern New England vacuum tube hifi gurus), they did put a sticker on it.

The problem from my perspective isn't about open/closed mindedness -- but rather what appears to be the deliberate misappropriation of a term (quantum tunneling) to sell a ground defeating plug adaptor.

Tunneling is a well-established and well-understood quantum mechanical effect (we wouldn't/couldn't have semiconductors without it); there's no magic, and there are no semiconductors in the product (nor, I'd be willing to bet, any semiconducting materials.

Healthy and well informed skepticism has a place, too, I would opine...